Skip to content

Search by AS number, IP, prefix, domain or organisation

Exchanges Countries Reports

IPv4 prefixes

AS55904 KOGAKUIN-AS KOGAKUIN University

Unclassified APNIC

Overview Prefixes2 Peering Exchanges Security Graph

Shape and geography IPv4 prefixes 1 IPv6 prefixes 1

Inventory

IPv4 prefixes

1 announced · 65.54K addresses

Filter this page

Prefix	Addresses	Country	RPKI	IRR	Flags
133.80.0.0/16	65,536	JP	No ROA	IRR

asn.dev is an explorer for autonomous systems: address space, network context, observed peering topology, and a full dossier on any address.

v0.19.0 · built 2026-10-15T12:06:43Z

built by cmunroe.us